Stove or furnace pipe



WQGRAY.

STOVE OR FURNACE PIPE.

APPLICATION FILED MAY 26, 192:.

l Patented Dec. 5,', 1922.

INVENTOR. i

ATTORNEY f Patented Dec. 5, i922.

sTATEs PATENT oI-FlCE. 1

' WILLIAM.GRAY, 0F (ROCHESTER, YORK.

Application ined may ze,

Another objecty of the improvement is rto alford a pipe section which can be packed in dated in a minimum space.

L`when assembled for installation.

nested relation with a number of sections. and which can easily and qu1ckl \v be 4assemf bled when rea-d v for use.

.An additional purpose of the invention is to provideI a form of 'lV-pipe. wherebyy a number of sections canbe nested one within the other for packing. andthus be accommo- Still a further object ofthe lniprovement. i's to afford a simple. efficient and readily operated means for interlocking or retaining together the separable walls of a section.

The invention also comprehends certain Vother features and advantages. all of which will appear clearljv from the following description. lin conjunction with the accompanving drawing.'l the novel features being pointed out in the cla-im following the description.

In the drawing:

Figure 1 is a front elevation of a pipe section. embodying a preferred arrangement )of the invention. and showing the separable walls interlocked: Y

Figure 2 is a side elevation of the same;

Figure 3-is aV front elevation similar to Figure l, and illustratingthe relativepositions of the separable walls as they are moved apart;

Figure- 4 is aA sectional view illustrating two pipe sections, with their walls separated,

`and one nested within the other for packmg Figure 5 is a sectional view on the line 5-5 of Figure 1; i/

Figure 6 is a sectional view on the line 6--6 of Figure l, and f Figure 7 is a sectional view on the line 7 7 of Figure'l.

rllhe invention may be carried out in a number of different ways, and for purpose s'rovE on FURNACE rIPE.

wel. serial No. 472,713.

of illustration. I have shown but one practical form, merely as an example of various adaptations that cany be'devised for accomplislnng the same .end In the present disvclosure. A designates the main portion of the 4 pipe section. to which is secured a lateral iue portion B. The flue portion B is smaller in diameter at its oujter end than at its base d inalljv at a point substantially opposite to the flue portion B. thereb;7 a`ording separable walls C and C. which can be spread apart. as shown in Figurev 4f. when the section is packedor brought into interlocked relationship. as shown in Figure l'. when the pipe is to be used. To this end. the wall C is bentI upon itself longitu'diialljv along its edge to afford a groove that receives a tongue c. which extends longitudinalljv along the edge of the wall C This arrangementaffords a close-fitting over-lapping joint. and

- the respective walls are heldin this relation,

as indicated in Figure T. by the following interlocking means.

The groove inthe wall C is provided witha recess or pockets. which receives a-.projection or abutment c2 'formed on the wall C. and

at the other end of the section. the wall C- has a recess or pocket c3 that receives the ininterlocking projection 04. `When the-parts are in final assembled relationship, the interlocking recesses and projections just de- I scribed serve toprevent relative lateral movementor accidental relative displacement; of

j the walls C and C Preferably, the tongue `and groove construction of the two walls terminates at ay slight distance from one end of the section in order toaford sufficient Space for a joint with an adjacent section, and at this point. there is provided the eX- tension or plate d which underlies the wall' llocked together, as

C when the parts are shown in Figure 5. N

.In order to bring the two separable walls together` into interlocked relationship. the tongue cris inserted into the groove of the wall C in the manner shown in Figure 3. Then bv holding the wall C and moving the wall C longitudinally, at the same time swinging the still separa-ted end with the extension or plated inwardly, and 4directing in Figure 1, by exerting sufficient force to cause the projections c2 and 04 to springlinto the recesses c and 03. lThe parts areothus held together tightly, and the separable vwalls cannot be accidentally displaced with relation to each other. When the pipe is taken down, said walls can readily be spread apart by-the reverse operation to that already described, namely, by swinging the end ofsection C with the plate dinitially in a lateral direction, and then effecting a relative longitudinal movement of the walls C and C".

While I have described the invention with reference to a particular arrangement, I do not limit myself to the details shown, and

- this application is intended toV cover any modifications or departures coming within kthe fundamental nature of the invention and portion being split longitudinally from end i to end at a point substantially opposite to the flue portion, said flue portionv being larger at its base where it joins the main portion and smaller at its outer end, with sui'licient taper between its base and outer end to permit nesting one pipe section within another when the walls of the main portion are-spread. p

In witness whereof, I have hereunto signed my name.

- WILLIAM GRAY.

yso 

